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<html>
<head>
<title>Line breaks between white spaces</title>
<style>
div {
  width: 0px;
  border: 1px solid blue;
}
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</head>
<body>
<table>
<tr><th>U+0009</th><td><div>&#x0009;&#x0009;</div></td></tr>
<tr><th>U+000D</th><td><div>&#x000D;&#x000D;</div></td></tr>
<tr><th>U+0020</th><td><div>&#x0020;&#x0020;</div></td></tr>
<tr><th>U+2000</th><td><div>&#x2000;&#x2000;</div></td></tr>
<tr><th>U+2001</th><td><div>&#x2000;&#x2001;</div></td></tr>
<tr><th>U+2002</th><td><div>&#x2000;&#x2002;</div></td></tr>
<tr><th>U+2003</th><td><div>&#x2000;&#x2003;</div></td></tr>
<tr><th>U+2004</th><td><div>&#x2000;&#x2004;</div></td></tr>
<tr><th>U+2005</th><td><div>&#x2000;&#x2005;</div></td></tr>
<tr><th>U+2006</th><td><div>&#x2000;&#x2006;</div></td></tr>
<tr><th>U+2008</th><td><div>&#x2000;&#x2008;</div></td></tr>
<tr><th>U+2009</th><td><div>&#x2000;&#x2009;</div></td></tr>
<tr><th>U+200A</th><td><div>&#x2000;&#x200A;</div></td></tr>
<tr><th>U+200B</th><td><div>&#x2000;&#x200B;</div></td></tr>
<tr><th>U+3000</th><td><div>&#x3000;&#x3000;</div></td></tr>
</table>
</body>
</html>